CVE-2025-29939

NameCVE-2025-29939
DescriptionImproper access control in secure encrypted virtualization (SEV) could allow a privileged attacker to write to the reverse map page (RMP) during secure nested paging (SNP) initialization, potentially resulting in a loss of guest memory confidentiality and integrity.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
amd64-microcode (PTS)bookworm/non-free-firmware3.20250311.1~deb12u1vulnerable
bookworm/non-free-firmware (security)3.20230719.1~deb12u1vulnerable
trixie/non-free-firmware3.20250311.1vulnerable
forky/non-free-firmware3.20251202.1vulnerable
sid/non-free-firmware3.20260923.1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
amd64-microcodesource(unstable)3.20260923.1
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